{"product_id":"rtn-stn-x-1000-ml-fm-rtnx-03","title":"RTN\/STN X 1000 ml","description":"\u003cp\u003eFauna Marin RTN\/STN X is a liquid coral treatment formulated to interrupt rapid and slow tissue necrosis (RTN\/STN) by disrupting parasite and fungal development while supporting coral immune response.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eActive ingredient: pyridine-2-thiol-1-oxide; composition includes water, zinc, and chelators\u003c\/li\u003e\n\u003cli\u003eStandard dosing: 15 ml per 100 L daily, dosed into an area of strong flow, for 7-10 days (can extend if needed)\u003c\/li\u003e\n\u003cli\u003eSafe for soft corals, sea anemones, stony corals (SPS\/LPS), and azooxanthellate corals at labeled dosage\u003c\/li\u003e\n\u003cli\u003eRemove activated carbon during treatment; skimmer, adsorber media, and UV sterilizer can stay running\u003c\/li\u003e\n\u003cli\u003e1000 ml (1 liter) bottle; registered biocide (BAuA Reg. No. N-94587), marine aquaria only\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRTN and STN can wipe out a coral within days once tissue loss starts, and by the time it's visible the underlying pathogen is already established. RTN\/STN X's zinc-based active ingredient targets the fungal and parasitic activity driving the necrosis while leaving the coral's own defenses intact, buying time for the tissue margin to stabilize.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatible with:\u003c\/strong\u003e can be combined with Fauna Marin Bacto Therapy, dosed at 3 ml per 100 L, during the same treatment window.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Default Title","offer_id":46000594026540,"sku":"FM-RTNX-03","price":103.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/4382\/5196\/files\/rtn_stn_x_2_42992c5f-c38e-4437-b27f-240f30cb7e84.png?v=1787190350","url":"https:\/\/www.marineconceptsupply.com\/products\/rtn-stn-x-1000-ml-fm-rtnx-03","provider":"Marine Concept Supply","version":"1.0","type":"link"}